... Abrasion strength 3.Top Quality Diamond Grinding discs/Grinding wheel:Products Description:Used for rought gringding,fine grinding,finishing grinding for the plane surface1.Metal ... '' , 10'' ( 100mm-250mm )2.Resin-bonded Grinding DiscsGrit: 500#,800#1500#,3000#Diameter:4'' , 6'' , 8'' , 10'' ( 100mm-250mm ) metal bond diamond Grinding discs